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(No Model.)

A. WYKER.

HOPPER FOR ROLLER FEED MILLS. No. 553,092. Patented Jan. 14, 1896.

ma /v7 09 9% Q ATTORNEYS.

WITNESSES.

UNITED STATES PATENT QEEIcE.

ARTHUR WYKER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIM- SELF AND ERWIN W. MOYER, OF SAME PLACE.

HOPPER FOR ROLLER FEED-MILLS.

SPECIFICATION forming part of Letters Patent No. 553,092, dated January 14, 1896.

Application filed October 3, 1895. $erial1l't. 564,505. (No model.)

To all whom it may concern: the inclined dividing-board 11, constitute the Be it known that I, ARTHUR \VYKER, of upper portion of a hopper l3, and at the bot- Philadelphia, in the county of Philadelphia tom of this hopper a directingboard 13 is seand State of Pennsylvania, have invented a cured to the rear wall. of the mill, being in- 55 5 new and Improved Hopper for Roller Feedclined downwardly and forwardly to a point Mills, of which the following is a full, clear, near the two upper rollers 14 of the mill and and exact description. adapted to first receive the material to be My invention relates to an improvement in operated upon. Above the lower directin hoppers especially adapted for roller feedboard 13, and practically in alignment with 60 1o mills and mills of like description, the hopthe bottom portion of the board 11 of the per being so constructed as to regulate the hopper, a feed-cylinder is journaled in the supply of i'natlerial to the rollers in the mill bottom of the aforesaid hopper B. This cylin a simple and economical manner. inder. is preferably secured upon a shaft 15,

The object of the invention is to so conwhich extends beyond one side of the machine 6 5 r 5 struct the feed mechanism that aregulatinga predetermined distance, and the cylinder roller will be provided capable of I being exis provided with longitudinal ribs 16 secured peditiously and conveniently adjusted to or upon its face. i from the feed-cylinder in such manner that In connectionwith the feed-cylinderareguthe amountof material passing over the feedlating device 0 is employed, and this regu- 7o :0 cylinder to the rollers of the machine maybe lating device consists preferably of two side accurately regulated. pieces 17, each side piece being secured at its The invention consists in the novel conlower end to a trunnion 1S journaled in the struction and combination of the several sides of the body A of the machine, preferparts, as will be hereinafter fully set forth, ably in front of the uppermost of the rollers 7 5' and pointed out in the claims. 14. Each side piece 1'7 of the regulating de- Reference is to be had to the accompanying vice is upwardly and rearwardly curved, the drawings, forming apart of this specification, two side pieces being connected by a crossin which similar characters of reference inbar 19, the said bar being given an inclinadicate corresponding parts in all the figures. tion substantially like that of the upper for- 8o Figure 1 is aplan view of the upper portion ward board 11 of the hopper B. The conof a feed-mill, illustrating the feed mechannecting bar or plate 19 is preferably made of ism, portions of the mill and attachments bea width corresponding to the sides 17 of the ing in section. Fig. 2 is a vertical section regulating device, and the said plate or crosstaken substantially on the line 2 2 of Fig. 1. bar extends downward a sufficient distance, Fig. 3 is a side elevation of the upper portion or is provided with downwardly extending of the mill, and Fig. i is a detail view of the bearings 20 to constitute journals for the regulating device for the feed mechanism. trunnions of a regulating-roller 21, and this In carrying out the invention the body A roller is located over the feedcylinder 15, of the mill may be of any desired formation, practically filling up the space between the 4o.being' shown in the drawings as somewhat said feed-cylinder and the under edge of the rectangular in cross-section, and in the top of connecting bar or plate of the regulating dethe body, near what may be termed the rear vice, while the cylinder 15 is made to somewall, an opening 10 is made, in which the what closely approach the bottom or directmaterial is to be introduced, and from the ing board 13 of the hopper. 45 front wall of this opening 10 a board 11 is According to the adjustment of the regu-.

downwardly and rearwardly extended, the lating-roller 21 to and from the feed-cylinder distance between the board at its bottom and the material contained in the hopper B will the rear wall of the mill being somewhat less be fed in greater or less amounts to the rollthan the distance between the top of the said ers 14:. The adjustment of the regulating de- I00 50 board and the rear wall of the mill. vice is accomplished by causing, for example, The rear wall 12 of the mill, together with the right-hand trunnion 18 of the side bars or arms of the device to be carried a predetermined distance beyond the outer face of the casing, and this extended trunnion is pro vided with anarm 22 attached thereto, which may be termed a crank-arm, and the said ing the shaft 24 in one or the other direction the regulatin g device will be made to approach or will be carried away from the feed-cylinder 15, therebyincreasiug or diminishing the space between the working surface of the cylinder and that of the regulatingnoller 21.

The shaft 14, upon which the upper roller 14 is secured, is preferably made to extend some distance beyond the left-hand side of the body of the machine and is j ournaled in the bearing 27 secured to the left-hand side of the body of the machine by preferably upwardly and downwardly extending arms or brackets 28. Ordinarily a fast pulley 29, together with a loose pulley 80, is carried by the extended end of the shaft 1%, as is also a sprocket-wheel 31, the latter being located preferably within the line of the bearing 27, as shown in Fig. l, and this sprocket-wheel is connected by a linkbelt 32 with a second sprocket-wheel 33, secured upon the left-hand projecting end of the feed-cylinder 15, from which it will be observed that the feed-cylinder is driven from the spindle or shaft of the upper roller 14.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a mill for the purpose described, a hopper, rollers located at the bottom portion of the hopper, and a directing board forming a section of the hopper bottom and leading to said rollers, a feed cylinder located within the hopper above the directing board, and a regulating roller located above the feed cylinder, having adjustment to and from the same, substantially as shown and described.

2. In a mill, a hopper, rollers located at the bottom portion of the hopper, a directing board constituting a portion of the bottom of the hopper and leading to the said rollers, a cylinder adapted to feed material to the rollers and located above the directing board and above the plane of the rollers, a regulating roller capable of movement to and from the feed cylinder, being placed above the same and between the said cylinder and the lower end of the hopper at one of its sides, and an ad justing device connected with the supports for the said regulating roller, as and for the purpose specified. r

In a mill, a casing or body provided with a hopper, rollers at one side of the said hopper, a directing board constituting a bottom portion of the hopper and havinga downward inclination, serving to direct material. to the said rollers, the cylinder being provided with peripheral ribs, a regulating device consisting of pivotally connected arms, a connecting bar uniting the arms and having substantially the same inclination as that of the hopper. a regulating roller carried by the regulating device, being adjacent to its upper end and over the feed cylinder, and a regulating shaft connected with the aforesaid regulating device, operated from the exterior of the machine, as and for the purpose specified.

i. In amill for grinding or separating material, a hopper, rollers adapted to receive the material, located adjacent to the bottom of the hopper, the said bottom being inclined, a feed cylinder journaled in the bottom portion of the hopper, removed from and in a plane higher than the aforesaid rollers, a frame pivoted in the body of the machine, extending upwardly from its pivot point in direction of the inclined surface of the hopper, a regulating roller carried by the regulating device and located above the feed cylinder, the said feed cylinder and regulating roller serving to retard the material in its passage from the hopper proper to the said rollers, a regulating shaft connected with the regulating device, and a driving connection between the roller and the feed cylinder, as and for the purpose specified.

ARTHUR XVYKER.

lVitnesses:

XV. J. S. RHOADS, CABLES Bo'rTKE. 

